When this reboot happens and Trek is again at the cutting edge it is likely that we will hate it and we will not relate to it but the target audience will. We will put old repeats of Trek on whilst our children and grandchildren are glued to the TV/Tablet/Computer in another room watching NEW NU-Trek in all its futuristic splendour whilst we realise that we are old

Its like the music of the 40s vs the music of the 60s?!!?? Its all part of natural evolution! Trek has to adapt & change as well.
Really? Has Shakespeare had to adapt and change? Homer? Twain? How did adaptation and changing work for Lucas and Star Wars?
If Trek did something really new I would be genuinely surprised. Our stories are archetypal and tap into the same psychological appetites. There's a reason why popular action stories follow Campbell's monomyth so closely.
They'll have different gadgets and different sensibilities (about politics and sexuality), but the structure will be the same.
The narrative will only really change once the human race hits the singularity, and we will have much bigger issues to consider at that time than the continuity of Star Trek.